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Factoring and Lowest Common Multiple - Intro

37 Topics, 4 Skills

Finding Lowest Common Multiple Distinct Factors

Topic 1

Finding Lowest Common Multiple

Topic 2

Finding Lowest Common Multiple

Topic 3

Is Number a Multiple - From Value as Factors

Topic 4

Which Number of a Pair is Prime

Topic 5

Is Number a Multiple - From Variable as Factors

Topic 6

Is Number a Multiple of Both - From Values as Factors

Topic 7

Is Number a Multiple of Both - From Variables as Factors

Topic 8

Is the Number Prime or Composite

Topic 9

Venn Diagrams - 2 Numbers - Populated Venn without Unique to LCM

Topic 10

Is the Number Prime or Composite

Topic 11

Venn Diagrams - 2 Numbers - Populated Venn without Unique to LCM

Topic 12

Is the Number Prime or Composite

Topic 13

Venn Diagrams - 2 Numbers - To LCM

Topic 14

Venn Diagrams - 2 Numbers - To LCM

Topic 15

Factor Tree with 4 Factors - Full

Topic 16

Venn Diagrams - 2 Numbers - Populated Venn to LCM

Topic 17

Venn Diagrams - 2 Numbers - Populated Venn to LCM

Topic 18

Venn Diagrams - 2 Numbers - Populated Venn without Unique to LCM

Topic 19

Venn Diagrams - 2 Numbers - Populated Venn without Unique to LCM

Topic 20

Venn Diagrams - 2 Numbers - To LCM

Topic 21

Venn Diagrams - 2 Numbers - To LCM

Topic 22

Finding Lowest Common Multiple Distinct Factors

Topic 23

Finding Lowest Common Multiple from Factorizations

Topic 24

Finding Lowest Common Multiple

Topic 25

Factor Tree with 3 Factors - Full

Topic 26

Venn Diagrams - 2 Numbers - Populated Venn to LCM

Topic 27

Venn Diagrams - 2 Numbers - Populated Venn to LCM

Topic 28

Is Number a Multiple - From Value as Factors

Topic 29

Is Number a Multiple - From Value as Factors

Topic 30

Is Number a Multiple of Both - From Values as Factors

Topic 31

Is Number a Multiple of Both - From Values as Factors

Topic 32

Finding Lowest Common Multiple from Factorizations

Topic 33

Finding Lowest Common Multiple from Factorizations

Topic 34

Finding Lowest Common Multiple Distinct Factors

Topic 35

Which Number of a Pair is Prime

Topic 36

Which Number of a Pair is Prime

Topic 37

Prime Factorizatio

Is Number a Multiple of Both - From Values as Factors (Level 2)

This math topic involves applying prime factorization to determine if one number is a multiple of two others. Problems require the use of factoring skills to break numbers down into their prime factors, and an understanding of multiples to determine the relationship between numbers. The central theme of these problems is to assess whether a given number, after its prime factors have been exposed, is a multiple of both of two other factored numbers simultaneously, which is part of practicing Lowest Common Multiple calculation. Each question displays the prime factorization of three numbers and asks if the first is a multiple of the other two.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Is Number a Multiple of Both - From Values as Factors

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

10

Is 90 a multiple of both 18 and 30?

90=2⋅32⋅518=2⋅3230=2⋅3⋅5is 90 a multiple of 18 and 30?\begin{align*}90 &= 2 \cdot 3^2 \cdot 5\\\\[-0.5em]18 &= 2 \cdot 3^2\\[-0.5em]30 &= 2 \cdot 3 \cdot 5\end{align*}\\\\ \textsf{is }90\textsf{ a multiple of }\\18\textsf{ and }30?

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